D1346: fsmonitor: only access inner dirstate map if it is available

[durin42 (Augie Fackler)]

durin42 requested changes to this revision.
durin42 added inline comments.
This revision now requires changes to proceed.

INLINE COMMENTS

> __init__.py:279
> +        # directly access the inner dirstate map if the standard dirstate
> +        # implementation is in use.
> +        dmap = dmap._map

Do we do this for perf reasons?  If so, add a comment.

(Maybe check and see if this shows up on perfdirstate or similar - if it does, document that in the commit message with numbers, and then you don't even need a comment because we'll find that with blame.)

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D1346

To: mbthomas, #hg-reviewers, durin42
Cc: durin42, mercurial-devel